netdev - [PATCH net-next 2/8] net/smc: fallback to TCP after connect problems

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Date:   Fri, 12 Apr 2019 12:57:24 +0200
From:   Ursula Braun <ubraun@...ux.ibm.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, linux-s390@...r.kernel.org,
        schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
        raspl@...ux.ibm.com, kgraul@...ux.ibm.com, ubraun@...ux.ibm.com
Subject: [PATCH net-next 2/8] net/smc: fallback to TCP after connect problems

From: Karsten Graul <kgraul@...ux.ibm.com>

Correct the CLC decline reason codes for internal problems to not have
the sign bit set, negative reason codes are interpreted as not eligible
for TCP fallback.

Signed-off-by: Karsten Graul <kgraul@...ux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@...ux.ibm.com>
---
 net/smc/smc_clc.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h
index 24658e8c0de4..6c94d54e7a67 100644
--- a/net/smc/smc_clc.h
+++ b/net/smc/smc_clc.h
@@ -40,10 +40,10 @@
 #define SMC_CLC_DECL_OPTUNSUPP	0x03060000  /* fastopen sockopt not supported */
 #define SMC_CLC_DECL_SYNCERR	0x04000000  /* synchronization error          */
 #define SMC_CLC_DECL_PEERDECL	0x05000000  /* peer declined during handshake */
-#define SMC_CLC_DECL_INTERR	0x99990000  /* internal error                 */
-#define SMC_CLC_DECL_ERR_RTOK	0x99990001  /*	 rtoken handling failed       */
-#define SMC_CLC_DECL_ERR_RDYLNK	0x99990002  /*	 ib ready link failed	      */
-#define SMC_CLC_DECL_ERR_REGRMB	0x99990003  /*	 reg rmb failed		      */
+#define SMC_CLC_DECL_INTERR	0x09990000  /* internal error		      */
+#define SMC_CLC_DECL_ERR_RTOK	0x09990001  /*	 rtoken handling failed       */
+#define SMC_CLC_DECL_ERR_RDYLNK	0x09990002  /*	 ib ready link failed	      */
+#define SMC_CLC_DECL_ERR_REGRMB	0x09990003  /*	 reg rmb failed		      */
 
 struct smc_clc_msg_hdr {	/* header1 of clc messages */
 	u8 eyecatcher[4];	/* eye catcher */
-- 
2.16.4